Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853087 | Process and apparatus for producing a filter with multiple folds | Georg Schlor | 1989-08-01 |
| 4832018 | Filter case holder | — | 1989-05-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853087 | Process and apparatus for producing a filter with multiple folds | Georg Schlor | 1989-08-01 |
| 4832018 | Filter case holder | — | 1989-05-23 |